Adjustable hospital bed



5 Shee ts-Sheet l A. DEVES ET AL ADJUSTABLE HOSPITAL BED INVENTORSAnthon Doves oiomongRadans ATTRNEY April 7, 1553 Filed June 3, 1946April 7, 1953' A. DEVES EIAL ADJUSTABLE HOSPITAL BED Fi led June :5,1946 5' sheat s-Sheet 2 lflfllllllllfllllf 1 INVENTORS Anthem DevesSotomonBYRaciwns BY i @1 v ATTORNEY 5 u 4 S 9 J. o In 0 o. .m "m9. O IN\* v3 n9 *3 m3 R w 3% m 0mm. n sfi w now *2 3 wow Gm N A mmw April 7,1953 A. DEVES ETAL ADJUSTABLE HOSPITAL BED 5 Sheets-Sheet 3 Filgd June3, 1946 Daves SoLomomBI-Zmduns BY INVENTOR 3 Anthony p il 7, 1953 A.DEVES ETAL 2,633,578

ADJUSTABLE HOSPITAL BED Filed June 3, 1946 5 Sheets-Sheet 4 1: i ll I]INVENTOR I Anifuony Daves solomon B. Raduns ATTORNEY April 1953 A. DEVESETAL 2,633,578

ADJUSTABLE HOSPITAL BED Filed June 3, 1946 5 Sheets-Sheet 5 tjllINVEN 2Rs. 11, any V0 SoZomon. B. Raduns ATTORNEY Patented Apr. 7, 1953ADJUSTABLE HOSPITAL BED Anthony D'eves, Plainfield, Conn, and Solomon B.Raduns, Brooklyn, N. Y., assignors to NationalManufacturing-Corporation, New York, N. Y.,v a. corporation of Connecticut ApplicationJune 3, 1946, Serial No. 674,080

3 Claims. 1

The present invention relates to an adjustable invalids bed and itparticularly relates to an 1 adjustable hospital bed. 7

It is among the objects of the present invention to provide an improvedhospital bed of inexpensive and modern design, which will provide anelevated adaptability for treatment of a patient in all the variousdesirable positions without requiring manual exertion or lifting of thepatient by the nurse and by relatively simple,,

immediately available and readily operated manual actuators.

- Another object is to provide an adjustable hospital bed which mayreadily be adjusted into low and'high cardiac, Fowler, bronchoscopic,respiratory, Trendelenburg, spinal and hyperextension positions, as wellas resting, bedpan, reading and eating positions and which may readilyreceive an over-bed table in the latter position without need of adepression-break in the middle of the spring or mattresses, and whichwill utilizethe entire length of a standard size mattress forv thepatients comfort, as well as supporting the patient in anatomicallycorrect position.

' A further object is to provide a silent, noiseless, simple, smoothworking elevating and adjusting mechanism with an easily adjustable headandbackrest, eliminating need. for using pillows and bolsters andwithout tendency toinvention.

Aparticular feature of the present invention ;resides;in the provisionof a section adjustable bedspring arrangement with a central horizontalsection which is not hinged to a main or permanent frame, but which maybe elevated entirely fromthe main or permanent frame upon a guidedelevator piston construction. Hinged to the central section are mainhead and foot sections to which main head and foot sections in turn arehingedly connected auxiliary head and foot sections. At the front of thebed are three readily available actuators or handles whichdrive oradjust L the central and main head and foot sections.

10 the front and back support members,

The auxiliary sections are'adjusted relatively to the main head and footsections by suitable ratchet or brace members.

In the drawings, in which is shown one embodiment of a bed according tothe present invention by way of illustration and not by way oflimitation,

Fig. 1 is a top plan view of the adjustable spring bottom for aninvalids or hospital bed withou Fig. 2 is a sectional view upon the line2--2 of Fig. 1, n

Fig. 3 is a longitudinal sectional view upon the line 3-3 of Fig. 1,upon an enlarged scale as compared to Figs. 1 and 2,

Figs. 4. and 5 are transverse sectional views upon the lines 44 and55'of Fig. 3 upon the same scale at Fig. 3,

Fig. 6 is a sectional view upon the line 66 of Fig. 2 upon an enlargedscale as compared to Fig. 2 n n Fig. 7 is a top perspective view of thespring bottom showing the front and rear vertical support members of thebed in dotted lines and upon about the same scale'as Figs. 1 and 2,

Figs. 8 to 17 are side elevational, diagrammatic views upon a reducedscale as compared to Figs. 1, 2 and 7 showing ten of the typicalpositions into which the 'spring or bed bottom may be adjusted, Fig. 18is a detail sectional view upon an enlarged scale showing the hingeconnection between sections of the adjustable spring, and f Fig. 19 is atransverse sectional view on line 19-49 of Fig. 3.

Referring to Figs. 1, 2 and 7, a bed bottom or spring support or mainframe A is carried on a rear bed upright support section B and a forwardbed upright support section C.

Mounted upon the rectangular frame A is the center horizontalsection D,the foot section E with the end adjustment or auxiliary foot section Fand the head section with the head adjustment or auxiliary head'sectionl-l. The center section D is provided with an adjustingarrangement J, while the foot section E and the head section G arerespectively providedwith the adjusting ar- I4 having the corner lock orhook members I5. The hook members I5 engage studs on the plates I! andI8 attached to the legs I9 and 20 of the upright members B and C. Theupright members B and C have floor contacting rollers 2| and 22, withthe connecting top bars 23 and 24 and the vertical members 24 and thehorizontal members 25 (see Fig. 7).

The center section D is formed of the two short angle members 28 whichare guided by the elevator piston rods 21 riding in the piston tubes orguides 28. As shown in Fig. 6, the top flange 29 of the angle member 26is rigidly mounted on the reduced diameter portion 30 at the upper endof the rod 2'. which reduced diameter portion fits into an opening inthe top flange 29. It will be noted that in the lowermost positionasshown in Fig. 6, the top flange 29 of the angle member 26 abuts andrests upon the upper end 3| of the tube 28. The-vertical tube or guide28 extends down- .wardly. through openings in the horizontal flanges .4I.and 33. The flange 33 extends inwardly from the panel member 34, whichis riveted to the -vertical flange I3 of the main angle beam I0. Thevertical flange35 extends downwardly inside of the tube 28 as shown bestin Fig. 6. The tube 28 is fixed rigidly to the flanges I and 33 by the.Welding .36 and3'I.

'Pivotally connected to and extending downwardly from the verticalflange 38 of the angle ,member 2.6.is the bar 42. The bar42 isbentlinwardly and downwardly as indicated at 40so that z-the lowerportion thereof will be insideof the ,zhorizontal'flange 4| of the mainangle member I0 of the bed bottom. Its lower'end is pivotally,'-connected at 43 tothe arm 44. The arm '44 is rigidly connected at 45to the rotary cross tube 49. The cross tube 45 is rotatably mounted atits ends H 4'I in the web. member 34,. The tube 46 is also proyided withthe arm 48 which is pivotally connected at 49 to the forwardly extendingtube 50 form n pa tof. the opera ing m ha sm J for the central sectionD.

The operatingmechanisms J. K and L, being specificallyshown in Figs. 3to 5, are generally thesame for the central section D, the foot sect onE'and h hea c i n G- The tube 50 .(see Fig. 7) at first inclinesdownwardly and then is bent so that it has a horizontal forwardextension I5, which fits into the slides within the tube I6 (see Fi .3).The tube I9 is carried by the I l-shaped bracket I8 having the side legsI9 (see also Fig. the base 80 and the two horizontal flanges 8|. Theflanges BI are riveted at 82 to the horizontal flange 8,3 of thecrossbar member II.

Within the tube 15 is fitted the internally tapped bushing 84. Thebushing 84 (see also Fig. 4) is fixed in position by the brazed drilledopenings 85. The internal threaded opening 86 is lubricated through thetransverse opening 81 which receives thegrease cup 88. Through thegraphite cup 88 the bearing of the thread 89 on "the rod 90 in thesleeve 84 may be lubricated. The thread 89 is desirably a square acmethread.

"The rod 90 is provided with a sleeve'9l, which is fixed in position inthe tube "I6 by the set screws 92. The sleeve 9| is also provided withan opening 93 to receive the graphite cup 94. The

sleeves 95 and 96' are fixed to the rod'90 at each The end I02 ofthesection member I43.

4 I03 of the handle I04 is designed to be inserted in said recess WI.The handle I04 is made of flat stock and is bent substantially 90 at I05to form a portion which fits into the recess WI.

The end of the handle bar I94 carries the rod or bolt I09 held inposition by the lock nut and washer I01. The rod I09 extendsthrough theaxial opening I08 in the wooden handle I09. The handle I09 is recessedat IIO to receive the head III of the bolt or rod I05. The flat portionI03 is slotted at I12 to receive the rod or pin II3.

When the handle I09 is elevated and pressed forwardly, the insertportion I02 will slide forward into the recess IOI and enable the rod 90and the acme thread 89 to be turned in respect to the bushing 84 and thebearing sleeve 96. This will cause the tube to move inwardly oroutwardly in respect tothe tube 16. When the adjustment is completed, bygrasping the handle I09, the flat portion I02 may be pulled out of therecess 10!. The handle I09 may then be swung downwardly Out of the wayin the stud II3 with the corner IM fitting into the recess H5 in theouter end H6 of the tube I5.

Referring again to Fig. '7, the foot section E is composed of two anglesections I25, which are hingedly connected at I23 (see also Fig. 18) tothe central section D. As shown the hinge bar .350 is rigidly riveted at35I to the vertical flangelzl of the angle sections I25. At 353, the bar350 is pivotally mounted on the vertical flange 38 of the angle member26. Upon hinging movement, the

bar 350 will move in the slot 354 in the top flange 29 of the anglemember 23.

Depending downwardly from the vertical flanges I2'I are the bars I28,which turn inwardly and downwardly at I29. The lower portions I30 of thebars 28 are pivotally connected at I3I to the arms I32 and I34, whichare mounted upon the rotary tubes I33. The ends of the tube I33 areivotally mounted at I35 in the flange members '35 of the side plates340i the main frame.

Extending upwardly from the lever or arm I32 is the arm I36. To the armI36 at I31 is pivotally connected the flattened upturned position I38 ofthe tubular member I39. The tubular member I39 fits inside of thetubularmember I49 andis actuated by the manual operating member .I4I.These members I39, I40 and I4I may be of the same construction andoperate in the manner already indicated in the Fig. 3.

The foot section E has a U-shaped auxiliary frame F pivotally connectedto it at I42. The frame F has the side members I43 and the end Themembers I25 of the foot section E and the side members I43 of theauxiliary frame F have depending ears I36 and I4] with rollers I43 andI49 to support structures E and F on the horizontal flange 4! of theside frame members I0.

Extending downwardly from the horizontal flanges I50 of the side membersI43 of the U-frame F are the rack members I5I having putturnedconnections I52 at their upper ends to the vertical flanges I58. Therack members; t5]

are connected by a cross bar I53 and the roller or slide pins 15,whichride on-the flanges I55 extending inwardly from the angle members I58riveted at I 51 to the vertical flanges I 3 of the main frame membersI0. p

Also extending downwardly from the vertical flanges I50 of the sidemembers I43 of the frame -F is the U-shaped pawl member 158 pivotallyconnected at I59 to the flanges I50 and having base section I 60 whichengagesthe teeth -I6I" on thedepending rack members I-5I. "By adjustingf 'aeeaave F the transverse horizontal base rod I60 'in the' 'varlousteeth ornotc'hes' I6 I, the frame F may be kept in the same plane "asthe frame Eor inlthe plane inclined upwardly or downwardly from theframe -E in the direction of. the feet of the patient. J :Simila'rly bythe'relative adjustment of the mechanisms J and K the frame E may becaused to incline upwardly from the frameD or tobe in the same plane asthe frame D or incline. down- .wardly from. the frame D.

The head frame G'consisting of the sidechannel members I is. pivotallyconnected at .I'l6 to the center section D. The side members I15 areconnected at the rear of 'thestructure by the crossmemberiill. Pivotallymounted at ,I18on the vertical flanges I'I 9 of the angle members I15are the ears I80 of theside angle members --I8I of the adjustableU-frame or auxiliary head ;;,frame H. The members I8I are connected. at

their rear ends by the cross bar I82 v vhich has,

ti ons I85 which engage the horizontal flange I86 of the member I44.

Referring to the section H (see Fig. '7), there aresprofvided the anglemembers I81, attached. to the side beams .18 I. .The downwardlyprojecting ears I89 of the members I81 carry the depending arms I89which have reduced diameter stud portions I90 to fit into the series ofadjustment holes I9I in the top flange I92 of the side members I79 ofthe structure G.

Elevating the section Gare the arms I93 having the o'utturnedv portionsI94 carrying the rollers I95. Therollers I95 ride under the top flangesI92 inside of the angle members I19. The arms I 93 at their lower endsI96 are connected to the rods I91, which are rotatably mounted at theirends I98 in the apron flanges 35. Riveted to the levers I93 at I99 arethe arms 200. To the upper ends I of the arms 200 are pivotallyconnected the flattened ends 202 of the tube 203. The tube 203 fits intoand slides within the tube 204 of the adjustment arrangement L.

By the rotation of the actuator 205, it is possible to incline the headsection G upwardly from the structure D or position it in the same planeas the structure D or to incline it downwardly from the section D.

Carried by the sections D, E, F, G and H is the bed bottom or mattresssupport consisting of the longitudinal wires 420 with the end connectingcoil springs 4 I 8 and the crossing lateral wires 42I with theconnecting coil springs 4 I 9.

Extending between the side members I43 of the auxiliary frame F, theside members I of the main foot frame E, the side members I15 of themain head frame G and the side members I8I of the auxiliary head frame Hare the cross braces or the tubular members 400, 402 and 403.

In Figs. 1 to 1'7 are shown ten of the various adjustments which maymost readily be made. In all of these adjustments the mattress may beconsidered as on the five section adjustable frame DEFGH, held inposition by the stops I84 at the foot of the bed and I83 at the head ofthe bed. The adjustable frame D-E-FG-H may initially be considered to bein the position shown in Fig. 2. The central horizontal section D isfirst elevated to the desired height by turning the lever I04 at thefront of the bed.

{'6 Assuming the lever I4I (see Fig. '3) is in'down position with thenose .or corner II4 fitting into the opening II5,.with the flat portionI03 in the slot 4 I 6 and the pin I I3 in the left end of the slot H2,the handle MI is elevated and pushed forward with portion I02 fittinginto the slot I00. Then the handle I04 is turned, causing therod andthread 89 to turn in the sleeve 84 moving the tube 75. The tube I5 willturn the arm 48 which in turn will rotate the rod 46 .andthe arm '44.The arm acting through the pivotally connected link 42 will elevate thecentral horizontal section D which will always move parallelly to themain frame A by reason of the coaction of the guide rods 21 fitting inthe guide tubes 20.

When the central section D has been elevated to the desired position,the handle I4I may be withdrawn and; dropped in back of the frame .C;with the portion I03 passing into the slot 4I5.

- the-tube I33,- and the link I30 to elevatenor depress the section Eonthe hinge I26. The hanj dle 205 will move the tube 203, the arm 200 andthe lever I93 to raise or lower the main headsecto the holes I9I, whilethe auxiliary foot section F may be raised or lowered by engagement ofthe rod I00 with theratchet IBI. ;'Ihe r atchet bars I5I will alwaysdepend from the frame-E sincetheir rollers will slide on the angle guidemembers I55. j q j 3 In Figs. 8 to 17 are shown various adjustmentswhich may bereadily made, theseadjustments respectively beinglowposition in Fig. 8, bronchoscopic or eye position in Fig. 9, highcardiac position in Fig. 10, spinal hyper-extension position in Fig. 11,Trendelenburg position in Fig. 13, Fowler or drainage position in Fig.14, bed pan position in Fig. 16 and reading or eating position in Fig.1'7.

In Figs. 10, 12 and 17 an overhead table may be readily employed. In noposition is there an abrupt transverse break across the back of thepatient and in all positions the patient will be given a feeling ofmaximum security. The horizontal position of the central section D inall adjustments will give anatomically correct support and positioningand maximum comfort. When the patient is in any treatment position, heor she may then be readily moved to reading, eating or bed pan positionswithout great exertion on the part of the nurse or attendant and withoutdiscomfort or injury to the patient or feeling of unsecurity on the partof the patient.

The rollers I48 and I49 of the foot sections E and F, as well as rollerI95 of the head section G will assure smoother and noisless operationwith less friction. The roller I95 for example may be 2% in diameter.The hinge I26 of Fig. 18 will assure enhanced strength to the hingeconnections between the frames D, E, F and G and enable better spacingof said frames. The diagonal braces 422 increase the strength of thecorners of the section G. The longitudinal angle 4I'I will strengthenthe elevating mechanism J I for the central section D.

All corners and edges are rounded to prevent tearing of the bed clothingand injury to nurses and patients. The folding handles I04, I M and 204can only fold vertically downwardly between racers-ma"zthe'xverticalibars ofthe footzframelc, and Willnot strike :ormartheffoot .frame, because of :the "coaction between 'the .bars [03 andthe slots M16. Thezhand grips 109 are easyito remove and quiet andnonbindingin operation.

The 'corner hook plates 14 hold the bed and spring 'firm and rigid andpermit moving of patient on the bed .from' room to room without dangerof thespring'becomingloose. In'operation 12 lbs. pressure applied'to theends of the handles 100, [41 and 1205 vwill'readily enable "lifting andmovement of a 200lb. person.

As many changes could be made in the above -'adjustable hospital bed andmany apparently widely difierent embodiments of this invention could bemade-without departing from the scope of the claims, it is intendedthat'all matter-containedin the above description or shown in theaccompanying drawings shall be interpreted as illustrative-and not in alimiting sense.

hat is'claimed is '1. In a hospital bed having front and rear verticalupright support sections and a main lower rectangular supporting frameextending the full length and width of the bed, an upper'adjustablerectangular frame also extending the full length and width ofthe 'bed and movable upwardly and downwardly from and in respect'to thelower rectangular supporting frame, said upper adjustable-frame having acentral short hori-.

zontal'seetion terminating a substantial distance :-away from the fi'ontandrear upright sections and from the ends of -"the lower rectangularframe, adjustable rectangular head and foot sections forming partof saidupper adjustable frame and hinged respectively to the ends of saidcentral short horizontal section, and guide means 'for said centralsection mounted upon said lower rectangular frame and comprising aplurality of ;vertical tubularmembers'on eachside bI-said bed centrallymounted on :one of said frames, a corresponding 'pair of vertical .guide.rods .to be fitted in and toimoveupwardly'and downwardly within saidtubular members, said guide rods being at- .tached centrally to theother :frame and :said guide rodssliding in-and being guidedin saidtubular members, and means :on the support tramertorrzraisingx andlowering said central short horizontal section and'other means foradjusting thepositionof said footand said ..head sections in respect tosaid central short vertical section.

2. "The bed of claim 1, apairof said tubular members and apair of saidguide rods being positioned centrally at each side of said .bed.

3. Thebed of claim 1, said raising and lowering for said centralsectionconsisting of af'bell 'crank lever arrangement connected tothecentral'sides of said short horizontal section between said guide rodsand tubular members.

ANTHONY DEVES. SOLOMON B. RADU'NS.

' REFERENCES :CITED The following references are of record in'the fileof this patent:

UNITED STATES PATENTS

